baber/WOPTO huggingface dataset:
Patent GB-576966-A (GB)
Title: Attachment for lathe chucks and the like
IPC: B23B31/16
Filed: 1944-09-18
Abstract: 576,966. Work - holders ; chucks. ALEXANDER, D. H. W. Sept. 18, 1944, No. 17783. [Class 83 (iii)] In an attachment for chucks &c. to enable the work to be held off the chuck face, a stop is fitted to the jaws by means of a U-shaped clip embracing the stop and frictionally held to the sides of the jaws. The stop 1, Fig. 1, is mounted across the slideway and held by a spigot 3 locating in the spring clip 5. In a modification, the stop is cylindrical with a reduced diameter forming the spigot, or the stop may consist of two plain cylinders embraced by the spring 5, Fig. 5. In a further modification, the arms of the clip are corrugated ; the spacer fitting between the sides of the chuck jaws and the clip ; the pitch of the corrugations, relative to each arm, may be staggered. For use on face plates a plate 11, Fig. 10, has an integral spring clip 12 to grip the spacer 8.
Patent GB-1190346-A (GB)
Title: Improvements in or Relating to Metal Collapsible Tubes
Inventor: TIBERIIS ROBERT DOUGLAS
IPC: B65D35/12
Filed: 1968-04-16
Abstract: 1,190,346. Collapsible containers. VICTOR METAL PRODUCTS CORP. 16 April, 1968, 17830/68. Heading B8D. A metallic container 10 has an integral neck 13 with a groove 14 and teeth or serrations 15. A nozzle 16, e.g. of polyethylene or nylon &c., and of slightly narrower diameter than the neck 13, has an annular bead 18 which engages the groove 14. A stepped shoulder 19, on the nozzle, abuts and overlies the end of the neck13 to form a liquid tight seal, while the teeth 15 cut into a surface 17 of the nozzle 16 also forming a tight seal and so preventing movement of the nozzle when threading or unthreading a cap 22.
Patent GB-477365-A (GB)
Title: Improvements in and relating to pyrometers
IPC: G01J5/28
Filed: 1936-06-26
Abstract: 477,365. Radiation pyrometers. CLARK, W. J., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. June 26, 1936, No. 17862. [Class 40 (iii)] Relates to pyrometers comprising a photoelectric cell of the type which transforms radiant energy into electrical energy without the use of an auxiliary source of power, and means for concentrating radiant energy on the cell, which is in circuit with means for measuring the current output. According to the invention, in order that the current output of the cell may be independent of the temperature of the surroundings, and that the cell may show no fatigue effects, the apparatus is so designed that the maximum current output is very small, and the total external resistance is so chosen that it does not exceed a certain limiting value, dependent on the output. The maximum output is about 30 microamperes, the maximum permissible external resistance in this case being about 500 ohms ; with a lower maximum current output, the external resistance may be higher, e.g. 1000 ohms with 0À5 microamperes output. A suitable condensing lens or mirror and a diaphragm of suitable size are chosen, according to the permissible output. A screen having a variable aperture, or a series of different diaphragms may be provided. To enable the pyrometer to give readings which are independent of the distance from a hot body, the cell or apertured screen and the optical system are so arranged that every point of the sensitive surface or of the aperture receives from every point of the fully illuminated lens or mirror, radiation which comes only from the hot surface. Specification 440,188, [Group XX], is referred to.
Patent GB-482575-A (GB)
Title: Improvements in or relating to adhesive strips or sheets and processes of preparing the same
IPC: C09J7/21
Filed: 1936-06-27
Abstract: 482,575. Adhesive coated fabrics. MINNESOTA MINING & MANUFACTURING CO. June 27, 1936, No. 17912. Convention date, June 29, 1935. Drawings to Specification. [Class 140] An adhesive strip or sheet is made by saturating an unwoven fibrous backing material such as paper with a binding agent, drying the backing so that the fibres are bonded together and pores are formed in at least one face of the material and thereafter applying an adhesive coating to the porous face. The backing material and its method of manufacture are described in Specification 482,815. The adhesive may be pressure-sensitive or solvent-activatable and primers may be used. Preferably a rubber-base adhesive is employed.
Patent GB-1496206-A (GB)
Title: Wave interference exhaust silencer
IPC: F01N1/12
Filed: 1975-04-30
Abstract: 1496206 I C engine exhaust silencers GENERAL MOTORS CORP 30 April 1975 [3 May 1974 (2)] 17949/75 Heading F1B A helical baffle 44 between an inner tube 20 and an outer tube 12 defines a flow-path 56 between a chamber 52 at one end of the silencer and the outlet 28 of the inner tube or openings (118), Fig. 4 (not shown), intermediate the ends of the inner tube. The tube 20 communicates with the chamber 52 through openings 58 having a total flow cross-section substantially equal to the cross-sectional area of the inner tube. The path 56 is longer than the path through the tube 20 between the openings 58 and the outlet 28 or intermediate openings (118), Fig. 4, to produce interference of the sound waves and attenuation of a particular range of sound frequencies. Helical baffles 66 and 73 between the tube 12 and further tubes 34 and 60 provide flow-paths 72 and 82 in parallel with the flow-path between the inlet 36 and the openings 64 in the inner tube 34 to provide attenuation of two further ranges of sound frequencies. The openings (132), Fig. 5 (not shown), in the inner tube (134) upstream of intermediate openings may straddle the upstream turn of the baffle (136) and the end caps may include portions normal to the tube axis. The specification discloses specific dimensions of the silencer and frequencies attenuated and further arrangements of flow-paths, Figs. 7 and 10 (not shown).
Patent GB-497603-A (GB)
Title: Improvements in or relating to fireworks
IPC: F42B4/00
Filed: 1937-06-28
Abstract: 497,603. Fireworks. BROCK & CO.'S CRYSTAL PALACE FIREWORKS, Ltd., C. T., and BROCK, B. June 28, 1937, No. 17959. [Class 9 (ii)] A firework comprises an ovoid or substantially ovoid base d biassed or weighted as desired, and a tube a, set in the base and filled with rapidly-burning composition f adapted to be ignited by touch paper b. The tube a has an aperture e through which the products of combustion issue as a jet, the reaction of which imparts spinning &c. motion to the firework. The length of the tube a is preferably substantially equal to the length of the base. The aperture e may be provided with a small tubular extension. It is stated that the firework bounces in operation.
Patent GB-903632-A (GB)
Title: A relieving device for the wheel springs of vehicles
IPC: B60G17/005
Filed: 1959-05-27
Abstract: 903,632. Lifting chassis weight off road springs. SHELDON, A. J. May 26, 1960 [May 27, 1959], No. 17994/59. Class 108(2) A device for taking the chassis-weight of a vehicle, such as a crane, off its roadsprings comprises a collapsible support located between the axle 2 and the frame 4, 6, 7, 8, of the vehicle and releasable locking means to prevent collapse of the support when the frame is to be carried rigidly on the axle. A rod 9, pivoted at 11 to a saddle 12 over the road-spring 1 can slide freely through holes in the frame members 6 and 7 including an annular felt washer 16 adhering to the latter member. A rubber buffer 17 on the rod normally abuts the underside of a frame-flange 6A at " fullbump ". The rod carries serrations 21 which mate with those on one block 19 of a pair 19 and 20 which can be made to lock the rod to the chassis frame. The block 18 exposes a smooth semi - circular surface to the rod 9 and is welded under the junction of frames 6 and 7. Guide rods 22 passing through holes in the block 18 carry the block 19 fixed adjustably thereto by self-locking nuts 23 and are formed by a bar 26 at their outer ends. A pair of arms 29 (seen in plan on Fig. 2) normally held against the face of the member 6 by a split pin, as at 32, can be swung horizontally through 180 degrees to cause two cams 28 which are pivoted to the bar 26 at 27 to move the rods 22 inward or outward against springs 24 at will, thereby causing the bar 19 either to clamp or release the rod 9. Fig. 4 shows another embodiment in which a lazy-tong linkage 34 is pivoted at 39 and 41 to the chassis frame 43 and the axle 44 respectively. A bar 45 with a serrated end 48 extends from a pivot 40 of the linkage 34 through a guide-box 46 on the other pivot 42. By inserting a serrated pin 51 between the guide box wall and the bar 45 the linkage 34 may be locked to support the chassis rigidly on the axle. Specification 896,411 is referred to.
Patent GB-740895-A (GB)
Title: Improvements in or relating to electric converter arrangements
IPC: B60L3/00
Filed: 1952-07-16
Abstract: 740,895. Cooling metal-vapour converters. GENERAL ELECTRIC CO., Ltd., and THOMPSON, W. G. July 16, 1953 [July 16, 1952], No. 18007/52. Class 39 (1). In a metal-clad rectifier for railway traction purposes, the insulators for the electrode seals are cooled by air streams separate from that used to cool the main tank. Thus specially clean air can be used for cooling the insulators, without the need for using the large quantities of clean air which would be needed if it were also used for tank cooling. As shown, the clean air required to cool the insulators for the anodes 7 and cathode 6 are taken, via pipes 8, 9, from the region of the roof, while the tank 3 is cooled by air drawn from under the floor by fan 5. The clean air may circulate in a closed circuit with a heat-exchanger cooled by under-floor air.
Patent GB-515967-A (GB)
Title: Improvements in sealing devices for relatively moving parts
IPC: F16J10/02
Filed: 1938-06-17
Abstract: 515,967. Stuffing box substitutes. OLAER PATENT CO. June 17, 1938, No. 18026. Convention date, June 24, 1937. [Classes 122 (i) and 122 (v)] Two compartments 9, 10 of a storage container containing for example oil and air respectively are sealed to one another by a freely movable member 2 containing lubricant under pressure. The member 2 contains a piston element 3 having a rod part 3b passing into the compartment 9 and terminating in a lubricating device 13. The member 2 is constructed as shown with sealing lips 4, 8 and the piston element with corresponding lips 6. A passage 7 from the device 13 leads to a chamber 11 which communicates by passages 12 with a chamber 5. To facilitate dismantling the end of the container is provided with a screwed cap 17 and a small screwed cap 18 serves for access to the lubricating device, 13. Specification 473,449 is referred to.
Patent GB-690500-A (GB)
Title: Improved means for preventing the overflowing of sinks and the like
IPC: E03C1/244
Filed: 1950-07-19
Abstract: 690.500. Sink &c. overflows. RENOLD, H. July 19, 1950 [July 19, 19491, No. 18053/50. Class 26 An overflow device for providing a constant depth of water within a sink or the like comprises a tubular member b resting in a fluidlight manner in an annular element a, of flexible material, which element rests with its flat base on the sink bottom around the waste pipe, the tubular member not extending below the flat base The tubular member is perforated at c and the base may be provided with suctions cups d.
Patent GB-919819-A (GB)
Title: Improvements in or relating to threshing mechanisms for combine harvesters
Inventor: ANDERSEN PETER BONDE
IPC: A01F12/18
Filed: 1958-06-06
Abstract: 919,819. Threshing machines. MASSEYFERGUSON (GREAT BRITAIN) Ltd. May 25, 1959 [June 6, 1958], No. 18071/58. Class 6(3). A combine-harvester threshing mechanism comprises two threshing drums 1, 3 with co-operating concaves 2, 4 arranged in upward series, the axes of the drums lying in the same vertical plane and the concaves lying on opposite sides of this plane so that the path traversed by the crop is of S-shape. The drums are of the type described in Specification 919,820, and have sheet-metal beaters 11. The second drum has a speed of rotation 10-20% higher than the first and it may have a smaller clearance with its concave. Crop is supplied by a feeding mechanism 5 and grain passing through the concave 2 is. received by a collector 6. Grain separated by the drum 3 enters a casing 8A and is conveyed away by augers 8, 8B, 8C to join the product from the collector 6. Straw is delivered by the drum 3 to the straw-walkers 10.
Patent GB-121184-A (GB)
Title: Improvement in a Variable Speed Device.
Inventor: BOBROVSKY SERGE
IPC: B60K17/10
Filed: 1917-12-06
Abstract: 121,184. Bobrovsky, S. Dec. 6, 1917. Addition to 110,903. Variable-speed gearing.-In variable-speed gearing of the kind described in the parent Specification, the sinuous groove in the member B<o> of the coupling is replaced by an endless cam-groove of helical form having one or more turns, as shown in Fig. 3. The effect is to reduce the number of reciprocations of the driven part relatively to the rotations. The groove is traversed by a single pin, and a shuttle is used to prevent the pin from taking the wrong path at the crossings. Fig. 5 shows a form having two grooves d, each of a single turn, engaged by two pins c on the driving- shaft A.
Patent GB-1077716-A (GB)
Title: Improvements in or relating to vehicle door latches
Inventor: PUGH KENNETH PETER
IPC: E05B65/32
Filed: 1963-05-08
Abstract: 1,077,716. Latches. WILMOT-BREEDEN Ltd. April 30, 1964 [May 8, 1963], No. 18122/ 63. Heading E2A.  A vehicle door latch comprises a rotary latch member 2 and a striker, and a retention pin 20 and spring-loaded wedge 25 for interengagement on door closure in a manner which provides combined vertical and fore-and-aft restrain for a door with which the latch is used. As shown, the latch member 2 which is pivoted on a back plate 1, is engageable with a keeper pin 13 on a keeper back plate 12. The latch member 2 is partially shrouded by a cover plate 14 and is controlled by a spring loaded pawl 5, one arm 6 of which is engageable with a tooth 8, 9 or 10 on the latch member, and another arm 7 of which is engageable with a contactor arm 34 of a contactor lever 29 which is operable by an outside push button (not shown), and by an internal release linkage through a lever (39), Fig. 3 (not shown). Movement of the contactor may be blocked by an internal locking lever (44) connected to an internal locking member by a key-operated lock, through a shaft 48. A plate 19 connected between the keeper pin 13 and a flange 20 of the keeper back plate forms an anti-burst plate. The pin 22 is fixed to the flange 20 and is engageable with the wedge 25 which is mounted between the back and cover plates of the latch such that on door closure engagement of the pin 22 with inclined faces of the wedge, provide both vertical and fore- and-aft restraint for the door.
Patent GB-355858-A (GB)
Title: Improvements in loop-antennas
IPC: H01Q7/00
Filed: 1930-06-13
Abstract: 355,858. Wireless receiving apparatus. CUSTERSON, R., 11, Kingsville Gardens, Eastern Avenue, Ilford, Essex. June 13, 1930, No. 18156. Drawings to Specification. [Class 40 (v).] A loop aerial system adapted to receive signals from all directions without rotation is combined in a cabinet with a receiver or radio-gramophone. A plurality of loops are arranged in different vertical planes and selected by switching or electrostatic or electromagnetic coupling. In one embodiment two mutually perpendicular loops only are arranged to be connected in series with a switch to reverse the connections of one of them.
Patent GB-530410-A (GB)
Title: Improvements in or relating to electrical remote control systems suitable for use for the remote adjustment of radio receivers and for like purposes
IPC: H03L7/02
Filed: 1939-06-22
Abstract: 530,410. Electric control systems. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE. June 22, 1939, No. 18257. Convention date, June 24, 1938. [Class 40 (i)] An electric control system for adjusting a member such as a direction-finding frame or the tuning element of a wireless transmitter or receiver, comprises a variable frequency transmitter A1, and a receiver having high and low pass filters F1, F2 with intersecting attenuation curves as shown in Fig. 2, the outputs of the filters being rectified and connected in opposition to the control circuit of a reversible motor M which drives the controlled member A2 and also varies the limiting frequencies of the filters until the frequency at the intersection of their curves coincides with the transmitted frequency. In a modification, the control frequency is changed by heterodyning with a local oscillator or by frequency multiplication or division before application to the control circuits. The control frequency may be modulated by a frequency of, say, 50 # the component of this frequency in the output of the filters being used to control a single phase or Ferraris motor. The Specification, as open to inspection under Sect. 91, comprises also arrangements utilizing the heterodyne method in which the motor adjusts the frequency of the local oscillator, and in which a high or low pass filter is used alone, its output being opposed by a constant voltage derived from the control signal. This subjectmatter does not appear in the Specification as accepted.
Patent GB-801923-A (GB)
Title: Electro-magnetic control device
IPC: G05B11/01
Filed: 1955-06-24
Abstract: 801,923. Non-contactmaking relays. STANDARD TELEPHONES & CABLES, Ltd. June 24, 1955 [June 28, 1954], No. 18344/55. Class 40 (9). Two saturable cored transformers have primary windings connected in series or parallel and secondary windings connected in series opposition the cores and windings being such that an A.C. signal in the primary windings above (or below) a threshold value of current, voltage, or frequency produces an output in the secondary windings whereas a signal below (or above) that threshold produces substantially no output. The cores and/or windings of transformers 1 and 2, shown in Fig. 1, are such that one saturates before the other as the amplitude of A.C. applied to terminals 3, 4 is increased. The amplitude at which one core saturates being the threshold below which the cores are balanced and above which an output appears across rectifier 5. Alternatively, the cores may be such as to balance when both are saturated so that with an increasing input the output is cut off above a threshold value. The threshold value may be varied by means of a variable resistor 8 or by means of bias windings on either or both transformer cores. If the primary windings are fed in parallel a voltage threshold is obtained. As the current in the primary windings is a function of frequency the threshold may be made to coincide with a predetermined frequency.
Patent GB-1169317-A (GB)
Title: Transport Trolley
IPC: B62B3/18
Filed: 1968-04-18
Abstract: 1,169,317. Hand trucks. KOOPERATIVA FORBUNDET EKONOMISK FORENING. 18 April, 1968 [18 April, 1967], No. 18412/68. Heading B7B. A hand truck has a tapered base 1 provided with uprights 3 on which sides 4 are pivotally mounted, the lower edges of a side or sides pivotally carrying a base 5. When the base 5 is pivoted upwardly from its normal load carrying position the sides may be moved to the dotted positions to allow nesting of the truck.
Patent GB-483199-A (GB)
Title: Improved machinable plastic zinc alloy
IPC: C22C18/02
Filed: 1937-07-02
Abstract: A plastic zinc alloy for machining on automatic machines comprises 2-5 per cent of copper, 0,1-1 per cent of bismuth and 0,1-1 per cent of manganese, the remainder being fine zinc which is poor in iron and cadmium and which is free from magnesium and tin.
Patent GB-388770-A (GB)
Title: Improvements in or relating to welding
IPC: B23K11/25
Filed: 1931-06-27
Abstract: 388,770. Regulating-switches. BUDD MANUFACTURING CO., E. G., 2500, Hunting Park Avenue, Philadelphia, U.S.A. -(Assignees of Ragsdale, E. J. W.; Curren Terrace, Norristown, Pennsylvania, U.S.A.) June 27, 1931, No. 18671. Convention date, Jan. 19. [Class 38 (v).] In an instantaneous-timing switch for spot welding of the type in which potential energy is applied by a foot-operated mechanism to a movable contact, and released at a predetermined time, potential energy is applied to an arm 50 which at the appropriate moment moves over a number of contacts 52, 53, 61, 62 in the primary 15 of a transformer. The individual contacts in use or combinations thereof may be varied so as to vary the duration of the current by a switch arm 54 movable so as to engage contacts 55, 56 or 57, &c. which are connected to the contacts 53, 52, 62, &c.
Patent GB-619942-A (GB)
Title: Improvements in and relating to radiant thermal energy detectors
IPC: G01J5/30
Filed: 1944-09-29
Abstract: 619,942. Electrical indicating systems. BRITISH THOMSON-HOUSTON CO., Ltd. Sept. 29, 1944, No. 18739. Convention date, Sept. 30, 1943. [Class 40 (i)] [Also in Groups XL (a) and XL (b)] In a thermal energy detector, a discharge tube having an anode and a thermal responsive cathode is employed from which a potential proportional to the variations in the response of the cathode is. derived and fed back to increase the response of the tube. Radiant energy passes through window 13 of valve 10, heating the cathode to increase its emission. The resulting variation in anode potential is applied over transformer 16 to amplifier valve 23, the fluctuations in anode current being fed through an output transformer 20 feeding an indicator device 29. Energy is fed back in phase from further winding on the transformer 20 in series with the cathode of valve 10 to increase its response. The resistance 18 is adjusted to give the optimum operating temperature for the cathode of valve 10 and condenser 21a is varied to tune the secondary of transformer 16 for a maximum response. The window 13 may be of a fusible inorganic salt and the cathode may consist of a tungsten ribbon coated with a suitable oxide. In a modification, Fig. 2 (not shown), the feed-back is taken from a further winding on transformer 16 and applied to a negatively biassed grid arranged between the cathode and anodes of valve 10.
Patent GB-882332-A (GB)
Title: Linear dimension measuring instruments
IPC: B23Q17/22
Filed: 1958-06-13
Abstract: 882,332. Lathe details. SIMPSON, J. R. June 5, 1959 [June 13, 1958; April 10, 1959], Nos. 18899/58 and 12109/59. Class 83 (3). [Also in Groups XIX, XXIII and XXV] A semi-automatic micrometer comprises a frame 1, a screw-threaded spindle 2 mounted therein, a nut 25 engaging the spindle, one of these being movable relatively to the frame, a graduated wheel 13 mounted on the spindle and registering with a scale 18 on an adjacent member 11 and means whereby the operative element of the spindle and nut is rotatable under pressure exerted mechanically 21. As shown, the spindle 2 is fixed to an arm 6 sliding on a guide 5 and is thus prevented from rotating. The graduated wheel 13 is connected to two half nuts 24, disengageable from the spindle by means of a member 25 (see Group XXV) and can turn through one revolution at a time, further rotation being prevented by a spring- urged plunger 23. In use, the device is mounted on a machine e.g. a lathe or a grinding-machine, by a pin fitting in a slot 10, the nut 24 is released and the spindle 2 lowered until the feeler 9 mounted on the member 11 touches the workpiece. The nut 24 is then engaged with the nearest thread of the spindle 2. The plunger 23 is then withdrawn and a weight 21 turns the wheel 13 by means of a cord 22, until the feeler 9 is again just touching the workpiece. A reading is then taken using the scale 18 and the graduated wheel 13. If used in a grinding machine or on a lathe, the action of the weight 21 holds the feeler 9 against the work with constant pressure, as the diameter of the work is reduced. In a second embodiment, the weight is replaced by a torsion spring, the half-nuts are replaced by an ordinary nut fixed to the frame, and the spindle carrying the graduated wheel rotates and moves axially in the nut.